WASHINGTON — Emergency aid slowly began to reach some of the thousands of Haitians displaced by Hurricane Matthew in the country’s picturesque southwest as reports of casualties slowly trickled in from communities cut off by the storm. In the United States, areas of North and South Carolina were still dealing with flooding resulting from the hurricane.

The number of deaths reached 1,000 on Oct. 9, five days after the storm’s 145-mile-an-hour winds and torrential rains slammed into Haiti, according to a tally by Reuters based on conversations with local officials.